El Pacto Del Mayflower /

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

The Uses Of Wind Energy Is The Topic Of This Book. Explains The Positive And Negative Impact This Form Of Energy Can Have On Our World.

Defines screws, explains their functions, and suggests simple experiments to demonstrate how they work.

The eccentric millionaire, Pichicato Ramírez, loves to collect rare items but he goes too far when one day he makes a terrible deal that effects the entire town of Olotlán, including his nephew, Jacinto. Will Pichicato Ramírez learn that people are more important than collecting things.

Acércate a mirar un mundo fascinante que con frecuencia se oculta a la vista. Los bichos están en nuestro entorno, pero ¿qué sabemos realmente sobre ellos? En este libro se revela la vida secreta de esos pequeños animales: cuándo y cómo evolucionaron, qué aspecto tienen, cómo funciona su organismo, dónde viven y cuál es su comportamiento.

The use of calendars dates back thousands of years. Why are we driven to record time, and what would happen if we did not? Who created the concept of calendars? Why do different cultures use different calendar systems? And why are calendars so important to us? It is about "time" we found out! Created in collaboration with the Smithsonian Institution, this Spanish-translated Smithsonian Informational Text builds reading skills while engaging students' curiosity about STEAM topics through real-world examples. Packed with factoids and informative sidebars, it features a hands-on STEAM challenge...

Whether epic tale or legendary quest, the narrative texts in this series are adapted in a captivating style for each period, allowing the reader to track heroes and share their adventures, discover great civilizations, and learn about world history. The texts are based directly on original works or on a variety of authentic, ancient sources and tales. The narratives are enhanced by specially commissioned illustrations, photographs, and reproductions of ancient artifacts and documents. Mito, historia epica o busqueda legendaria, los textos narrativos de esta coleccion adaptados con estilo...